Transcript Types of Joints & Ligaments and Tendons

Types of Joints &
Ligaments and Tendons
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Types of Joints
Joint: where two or more bones meet
Joints and Movement: Different joints have
varying degrees of movement
Three types of joints
-fibrous joints
-cartilaginous joints
-synovial joints
Fibrous Joints
Fibrous joints: Bones that are connected
together without gaps.
Fibrous joints, movement: Not mobile
Cartilaginous Joint
Cartilaginous joints: Bones
connected by a small cushion of
cartilage. This cartilage acts as a
shock absorber, protecting the
joint from impact.
Cartilaginous joints and Movement:
Restricted movement
Synovial Joints
Synovial joints: Joints where the surface of the
bone is covered with a layer of slippery
cartilage. Found in the arms and legs
Synovial joints and movement: Joints that move
freely
Synovial Membrane: Found in the joining
surface. Secretes a slippery fluids onto the
surface of the joint
Types of Movement
Hinge
A hinge joint allows
extension and
retraction of an
appendage.
Found in: Elbow and
knees
Types of Movement
Ball and Socket:
A ball and socket
joint allows for
radial movement in
almost any
direction.
found in: hips and
shoulders.
Types of Movement
Gliding
In a gliding or plane
joint bones slide past
each other.
Found in: Midcarpal and
midtarsal
Types of Movement
Saddle:
A saddle joint allows
movement back and
forth and up and
down (not rotation).
Found in: Where
fingers connect to
hand
Types of joints
Pivot:
Pivot joints allow
rotation around an axis.
Found in: neck and
forearms
Ligaments and Tendons
Ligaments: Connective tissue that joins bones to
other bones.
Found in: Ankles, wrists, knees, and hands
Ligaments and Tendons
Ligaments: Connective tissue that joins bones to
other bones.
Found in: Ankles, wrists, knees, and hands
Tendons: Connective tissue that joins bone to
muscle.
Found in: Where ever muscle and bone connect.
Tendons
Brusae: Fluid filled sacs between bone and
tendon.
Function of the brusae: Reduce the rubbing of
the tendon on bone